76869780266 has 8 divisors (see below), whose sum is σ = 115328641764. Its totient is φ = 38426899680.

The previous prime is 76869780263. The next prime is 76869780269. The reversal of 76869780266 is 66208796867.

It is an interprime number because it is at equal distance from previous prime (76869780263) and next prime (76869780269).

It can be written as a sum of positive squares in 2 ways, for example, as 76776097225 + 93683041 = 277085^2 + 9679^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (76869780263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3983195 + ... + 4002446.

Almost surely, 2^76869780266 is an apocalyptic number.

76869780266 is a deficient number, since it is larger than the sum of its proper divisors (38458861498).

76869780266 is a wasteful number, since it uses less digits than its factorization.

76869780266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7990456.

The product of its (nonzero) digits is 73156608, while the sum is 65.

The spelling of 76869780266 in words is "seventy-six billion, eight hundred sixty-nine million, seven hundred eighty thousand, two hundred sixty-six".